LT1913IDD 查看數據表（PDF） - Linear Technology
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LT1913IDD Datasheet PDF : 24 Pages
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LT1913
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 10V, VRUN/SS = 10V, VBOOST = 15V, VBD = 3.3V unless otherwise
noted. (Note 2)
PARAMETER
Feedback Voltage
FB Pin Bias Current (Note 3)
FB Voltage Line Regulation
Error Amp gm
Error Amp Gain
CONDITIONS
VFB = 0.8V, VC = 0.4V
4V < VIN < 25V
MIN
780
● 775
●
TYP MAX
790 800
790 805
10
40
0.002 0.01
525
2000
UNITS
mV
mV
nA
%/V
μMho
VC Source Current
VC Sink Current
VC Pin to Switch Current Gain
VC Clamp Voltage
Switching Frequency
Minimum Switch Off-Time
Switch Current Limit
Switch VCESAT
Boost Schottky Reverse Leakage
Minimum Boost Voltage (Note 4)
BOOST Pin Current
RUN/SS Pin Current
RUN/SS Input Voltage High
RUN/SS Input Voltage Low
PG Threshold Offset from Feedback Voltage
PG Hysteresis
PG Leakage
PG Sink Current
SYNC Low Threshold
RT = 8.66k
RT = 29.4k
RT = 187k
Duty Cycle = 5%
ISW = 3.5A
VSW = 10V, VBD = 0V
ISW = 1A
VRUN/SS = 2.5V
VFB Rising
VPG = 5V
VPG = 0.4V
60
μA
60
μA
5.3
A/V
2.0
V
2.2
2.45
2.7
MHz
1.0
1.1 1.25
MHz
200
230
260
kHz
●
60
150
nS
4.6
5.4
6.0
A
335
mV
0.02
2
μA
●
1.5
2.0
V
35
60
mA
5
8
μA
2.5
V
0.2
V
65
mV
10
mV
0.1
1
μA
● 200
800
μA
0.5
V
SYNC High Threshold
0.8
V
SYNC Pin Bias Current
VSYNC = 0V
0.1
μA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LT1913E is guaranteed to meet performance specifications
from 0°C to 125°C. Specifications over the –40°C to 125°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. The LT1913I specifications are
guaranteed over the –40°C to 125°C temperature range.
Note 3: Bias current flows out of the FB pin.
Note 4: This is the minimum voltage across the boost capacitor needed to
guarantee full saturation of the switch.
1913f
3
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